Hamdi, Agus. “Analisis Sistem Informasi Pelayanan Jasa In-House Training Pada PT. Sigma Global Internasional Jakarta”. ComTech: Computer, Mathematics and Engineering Applications 4, no. 1 (June 30, 2013): 182-189. Accessed March 28, 2025. https://journal.binus.ac.id/index.php/comtech/article/view/2701.